Enhanced biodegradation of polyaromatic hydrocarbons in manufactured gas plant wastes [electronic resource].
- Chicago, Ill : Institute of Gas Technology, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: (18 pages) : digital, PDF file
- Additional Creators:
- Institute of Gas Technology
United States. Department of Energy. Office of Scientific and Technical Information
- Scientists at the Institute of Gas Technology (IGT) have focused on enhancing destruction of polyaromatic hydrocarbons (PAHs) present as pollutants in manufactured gas plant (MGP) soils. The factor that bears the most restrictive influence on successful biological PAH degradation is low pollutant transfer from soil into an aqueous environment where biotreatment processes can take place. Physical and chemical enhancements were used in conjunction with biological processes. Physical enhancements overcame the mass transfer problem and made possible the biological destruction of aromatic hydrocarbons. One- to three-ring aromatic hydrocarbons were readily biodegraded in liquid, soil slurry, and -- to a lesser degree -- composted soil systems. Four- to six-ring PAHs remained persistent but were effectively destroyed when chemical co-treatments were used. Combined biological/chemical/physical processes are currently being tested to achieve the most extensive PAH degradation possible for MGP soils. 8 refs., 9 figs., 2 tabs.
- Published through SciTech Connect.
3. Institute of Gas Technology (IGT) annual oil, gas, coal, and environmental biotechnology symposium, New Orleans, LA (United States), 3-6 Dec 1990.
Hayes, T.D.; Srivastava, V.J.; Linz, D.G.; Gauger, W.K.
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